Step 4: Take a picture of the tongue:
1. Use both index fingers to pull the cheeks out of the way. This will usually cause the child to open more and allow you to see better.
2. Push down on the chin with your middle and/or ring fingers to provide leverage when lifting. Use both index fingers to get underneath the tongue and lift up. You will want to take the picture with the tongue at its highest point.
Tips for the uncooperative toddler or small child
If your child is clamping down and not opening, I find it helpful to use your index finger and sneak back behind the last upper and lower molars. You can usually pry the jaw open from that access point without risking them from biting you. I also find it helpful to use a device to keep the mouth propped open. In the examples below, I use the back end of a tooth brush or a wooden tongue depressor to keep the mouth open and save my fingers.